Cisco Vpn Client Error 51 Windows 7
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in Mac OS X instead of the CiscoVPN software. Here's a guide that tells you how to convert from CiscoVPN to the native OS X client. If you are running Cisco's VPNClient cisco vpn client for windows 7 64 bit os free download on Mac OSX, you might be familiar with (or tormented by) "Error 51: cisco vpn client for windows 7 32 bit Unable to communicate with the VPN subsystem". The simple fix is to quit VPNClient, open a Terminal window, (Applications -> Utilities cisco anyconnect vpn client windows 7 -> Terminal) and type one of the following: (for older versions) sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart (for newer versions) sudo kextload /System/Library/Extensions/CiscoVPN.kext and give your password when it asks. This will stop and start the "VPN Subsystem", https://supportforums.cisco.com/discussion/11019716/vpn-client-windows-7-error or in other words restart the CiscoVPN.kext extension. Cisco seems to have problems when network adapters disappear and reappear, something that happens commonly in Wireless or Dial-up scenerios. Sometimes putting a system to sleep, disconnecting an Ethernet cable or simply reconnecting your wireless will cause CiscoVPN to loose track of the network adapters on the system. Considering that CiscoVPN is typically used by telecommuters, this is an astonishing oversight on http://www.anders.com/cms/192/CiscoVPN/Error.51:.Unable.to.communicate.with.the.VPN.subsystem Cisco's part. The above hack should side-step all of these issues by causing the CiscoVPN to re-initialize. It makes one ask, why couldn't Cisco have just put the restart into their client? Or a better idea would be to not reinvent the wheel and use the existing IPSec VPN support in OSX! Am I missing something? EDIT: The MacWorld guys came up with a simpler way to do the same thing: sudo SystemStarter restart CiscoVPN Posted by Anders Brownworth Monday, November 13, 2006 7:25 PM Tweet Comments (269) Jeff from Chicago #1 | Friday, March 23, 2007 6:53 AM Thanks for the tip - this worked like a charm. todd from boston #2 | Thursday, March 29, 2007 10:29 AM you the man - thanks! Tony from Carmel from Carmel #3 | Friday, March 30, 2007 6:49 PM Didn't work but rebooted my computer and the problem went away. Steve from Minneapolis #4 | Friday, May 4, 2007 5:30 PM Nice - works to correct the same issue when running Windows on a Mac (restart the Cisco VPN Service). Jason McCarty from Canada #5 | Monday, May 7, 2007 11:08 PM This did not work for me. I've gotten this error ever since I installed the VPN
Gadgets Subscribe Resources Hardware Phones Printers Ultrabooks Blogs Viruses Cameras Components Computer Accessories Consumer Advice Displays E-readers Flash Drives Graphics Cards Hard Drives Home Theater Input Devices Keyboards Laptop Accessories Mobile Networking Operating Systems Optical Drives Processors Servers Smartwatches Streaming Services Storage Tablets Windows Input Devices http://www.pcworld.com/article/152441/article.html Displays Printers Storage Networking Cameras Home Networking Fix an Error 51 With the Cisco VPN Client Comments By Rob Griffiths, Macworld Oct 17, 2008 2:50 PM One of the most-used programs on my Mac is the Cisco VPN Client, which is what I use to connect to Macworld's VPN when posting articles such as this one. (OS X's built-in VPN client also works, but it also logs me out of and then back into iChat every vpn client time I connect or disconnect from the VPN. The Cisco VPN Client doesn't have this annoying problem, so I use it instead.)While the Cisco VPN Client works well most of the time, sometimes when I try to launch the application, I'm greeted with this error message in place of the usual connection dialog: Error 51: Unable to communicate with the VPN subsystem. Please make sure that you have at least one network interface that is currently active cisco vpn client and has an IP address and start this application again.The error is clearly incorrect, because my machine's networking capabilities are otherwise fine--I can browse the net, send and receive e-mail, and connect to other machines in the house. I don't get the error message all the time, and I don't really know what causes it. It does seem to happen more often if I've slept and woke the machine, or moved it from one defined location to another, but even then, it's not predictable. All I know for sure is that it's annoying, because (until recently) the only fix I was aware of was to reboot the machine.One day, after probably the second or third time I'd restarted my machine, I decided there must be a better solution, so I went digging to see if anyone else had already found one--and they had. As detailed on the linked site, the solution is a relatively simple command that you execute in Terminal (found in Applications -> Utilities). After discussing the Terminal command with a friend, he came up with an even simpler version that works just as well:sudo SystemStarter restart CiscoVPNYou'll need to be an administrative user to run this command, and provide your admin password when asked. You won't see any output from the command; the Terminal prompt will return when it's done. After using the abov